graham



(No Model.) 4 Sheets-Sheet 1.. J. A. GRAHAM & E. J. BIRKETT.

GRAIN BINDER.

(No Model.) 4 Sheets-Sheet 2. J. A. GRAHAM & E. J. BIRKETT.

GRAIN BINDER.

Patented 'Aug. 22, 1893.

('No Modeli) v 4 Sheets-Sheet 3.

'J. A. GRAHAM & E. J. BIRKBTT.

GRAINBINDERY NO. 503, 2; 1 Patented 922.1893,

(No Model.) 4 SheetS-Shet 4.

J. A. GRAHAM & E. J. BIRKBTT.

GRAIN BINDER.

Patented. Aug. 22, 1893.

; UNITED STATES PATENT OFFICE.

JAMES A. GRAHAM AND EDWARD J BIRKETT, OF MILWAUKEE, VVISCON- SIN,ASSIGNORS TO THE MILWVAUKEE HARVESTERCOMPANY, OF SAME PLACE.

GRAIN-BINDER.

.. sPEcIFIoATIoNr rming part of Letters resent No. 503,662, datedAugust. 22, 1893.

Application filedJ'nne 20,1892. sBIiBJNO. 437.284. (No model.)

To all whom it may concern.-

Be it known that we, JAMES A. GRAHAM and EDWARD J. .BIRKETT, citizens ofthe have invented certain new and useful Improvements in Grain-Binders;and we'do hereby declare that the following is a full, clear, and exactdescription of the invention,which will enable othersskilled in the artto which it pertains to make and use the same, reference being had tothe accompanying drawings, and to the letters of reference markedthereon, which form a part of this specification. Our invention relatesto that class of automatic grain binders in which the grain as it isdelivered into the binder is by the action of the packers formed into agavel against a yielding compressor arm which, when a sufficient amountof grain'for a gavel has been accumulated, yields and trips the bindingmechanism into gear, and thereupon the needle arm advancing compressesthe grain against the compressor arm and places the twine in theknotter, which ties and discharges the' bundle.

Our improvements consist essentially, first, in the'construction andarrangement of the binder frame and gearing for'operating the bindingmechanism; and, second,in the compressing and tripping mechanism forautomatically starting and stopping the binder at the proper times.

They consist also in certain other novel features of construction andarrangement hereinafter particularly described and pointed out in theclaims.

In the accompanying drawings, like letters designate the same parts inthe several views.

Figure 1 is a rear end elevation of a portion of a grain binder to whichour improvements are applied. Fig. 2 is a face view of parts being shownin the position they occupy when the binder is at rest. Fig. 7 is asectional view'on the line y 3 Fig. 6 of aportionof the binder. Fig. 8is an end view of the driving pinion on the rear end of the packershaft, a portion being cut away to expose its ratchet connection withsaid shaft. Fig. 9 is an enlarged rear end view of a portion of thebinder, a part of the trip lever and gear on the knotter shaft beingbroken away to disclose parts which would otherwise be hidden thereby.Fig. 10 is a view like that shown in Fig. 9, except that the gearwheelis removed. Figxll is a perspective view of our improved binder; andFig. 12 is a side elevation of the yielding compressor yoke on the lowerarm of the binder frame, which is shown in section. Fig. 13 is aperspective view of a portion of arm a of the binder frame, showing thearm a projecting therefrom, and which supports the forward end 0 thecompressor.

A represents the upright portion of the binder frame, formed with twoparallel tubular arms a and a. projecting horizontally therefrom; theformer carrying the knotter shaft D and the latter the needle shaft 9The upper end of part A, at or near its junction with arm a, is formedinto a housing as shown in Figs. 7 and 10 for inclosing and shielding a.part of the trip and compressor connections. It is also formed near itsupper end with a bearing for the upper end of shaft 0, and below saidbearing it is made tubular or hollow for the purpose of inclosing saidshaft. Fitted into its lower end and secured therein by a set screw 5isabox b, carrying the lower end of shaft 0, and formed at right anglesthereto with a box b carrying the rear end of shaft B; said boxes beingso formed as to constitute a housing for the inter-working pinionscandc; the former mounted loosely upon and connected by a ratchet with shaftB, and the latter secured to the lower end of shaft 0.

B is a continuously rotating driving shaft, which may be driven from anyconvenient part of the machine. It is provided at its front end withcranks for operating the packers g g, and is supported in the boxbiabove pinion c for intermitti-ngly actuating vthebinding mechanism, ashe eina t te p -Mounted upon the rear end of knotter shaft D is amutilated bevel geard arranged to work withthe pinion 0 The number o fteeth left out of gear din thisinstanee is three, but it is evident thatthe number should be varied according to the size of said pinion.

An outwardly or laterally yielding sector d, provided with the requisitenumber of teeth.

to fill the break in said gear, is pivoted thereto by a bolt d and heldin working position by a sprin g d? interposed betweenit and an overtheupper end of pitman g, which is connected at its lower end with acrankarm g on the rear end of needle shaft 9- carrying at its front endthe needle G in the usual manner. 7

Fisthe trip a d compressor shaft, supported at the rear end by a 1oral-m s q jecting from the" binder frame and at the 1 front end by ayielding yoke J, which is formed with two or more notc es 0r bearings toe eive said shaft, as shown in Figsll and 12,-for regulatingthe size ofthe gavels. Upon the front end 01; shaft 13 is mounted the tr p tocompress the gavel.

connected with the trip leverH by a onnectingjin its en aroller h'whichrests,twhen the bi der is not n operation, in depression; cl in the camd on the inside of. gear 1, and acts as a fulcrum for said lever H inturning 0am E mounted; oose y upon the knotter shaft D, holdssecto I: atout of engag ment with pinion o when the cam E upon its bear ng.

binder is a rest, by ct with an arm d proj i gf om said sector, as shownin Fig- 7, but when it is turned upon its bearing by the tfripandcompressor arm f; through the connections hereinbefore described, butof": engagement with arm (1 the sector 01 is} thrown by spring (i intoengagement with the pinion c and thereby-sets the binding mechanism inmotion.

binder frame, as shown in 10.

The overhang- 7 Upon the rearendof :v sha t F is secu ed the crank arm fwhich is I Cam E is limited in its: movement in. th directions by lugs eand; e coming iucontact with the inside of the,

'binder frame, as clearly shown in Fig. 10, resists the yielding of thecompressor arm f and holds said dog in engagement with a lug d on therim of gear (I. It is evident that separate springs may be used forthese purposes, but we prefer in practice the single spring, wh ch, whenarranged as shown and described, insures the return of the trip lever Hto its normal position after a bundle is discharged, the lug d passingunder the roller in the end of dog h and compressing saidspring just assaid lever is brought home.

The yoke J is formed with an, elongated transverse opening by which itis mounted and permitted to move in the direction of its length upon thelower arm a of the binder frame. It is guided and held in place betweenan outwardly projecting arm a on the binder frame and la flang e on thehub of the needle arm and is, formed with a g oove j, shown in Fig. 12,which engages with the front edge of said arm a as shown in Figll. Yoke3 extends inwardly from arm a and is 'formed into a receptacle .for acoiled 1 grain.

ur improved b nder operates as follows: When the necessary quantity ofgrain to .form

aigavel has been accumulated by the packersthe compressor arm f forcedthereby ou and compressor arm f, Which yields to thef pressure of thegrain ac umulated against it by the packers and, tu ning said shattin thdirection indicated by the arrow in Fig, 6, trips the binding mechanism,into gear w} enj the gavel has attained the proper size, and. then actsin opposition to the nee le arm Gf wardly in the direction indicated bythe arrow in Fig, 6, andia t ng through shaft F vand connecting rod fswings'thetriP lever .H on its roller h as a fulcrum, and thereby Itnrnscam E on the iknottershatt D out of engagement with arm d? of sector d,which is then thrown inwardly bysprin g d not of engagement with stop auponthe binder frame into engagement with thepinion c 'upon thecontinuously rotating shaft 0, The bindin mechanism is thus set. nmotion. l The gear wheel d, rotated in the directi n indicated by thearrow in Rig. 1', and acting through pit- .man 9 and crank. arm 9 onneedleshaft g raises the'needle arm G to compress the gavel in the usualmanner-between itahd thfcompressor arm which isheld during the operationin its upright-position; as shown in Fig. 6, by therolle h on arm hotthe trip lever-traveling upon'the outer portion Ofthe periphery of camat". As thegea wheel dcontinues to revolve, the roller'h' drops into thedepr s-' sion at in said cam, thus permitting the compressor arm f tootall .suiilciently to'all w the discharge of t e bundle from the bin eThe roller h passing-out of the depression (i a ses said compressor a mfto its normal upright position, and at the completion of the revolutionof gear-d drops intoits, seat 01 in cam d". As theege'ar d completes itsrevolution; itcarries arm d5 of sectorv .df into contact with trip camE, and thereby th-rows said sector out of engagement with the"continuously rotating pinion c; The projection upon the lower end ofsector (1 thereupon en-' gages with lug a on the binder frame, as shownin Fig. 9, and stops the binding mechanism; at the same time the lockingdog It drops back of lug cl on gear d, and is held in place by thespring 6 thus preventing a backward movement of said gear. By referenceto Figs. 6, 9 and 10, it will be observed that the dog 72 is formed witha stop at its free end, which engaging with a lug h on the binder framesupports the dog in the proper position for carrying spring a as shown,and holds the roller. in said dog out of contact with the rim of gear(1, except when it engages the lug d", as hereinbefore mentioned. Thebinding mechanism now remains quiescent until it is again set in motionin the manner hereinbefore described, by the formation of another gavel.

We do not wish to be understood as limiting ourselves to the exactconstruction and arrangement of parts herein shown and described, as itis evident that many changes may be made without departing from thespirit of our invention.

We claim 1. In a grain binder, the combination with the knotter shaft, adriving shaft transverse thereto and gearing for connecting said shafts,

of the binder frame formed with a hollow upright inclosing saidtransverse driving shaft and provided at its lower end with a detachablebox for said transverse shaft, substantially as and for the purposes setforth.

2. In a grain binder, the combination with the knotter shaft, a drivingshaft and a connecting shaft transverse thereto, of the binder frameformed with a hollow upright inclosing said transverse shaft, and boxesfor said driving and connecting shafts formed together and detachablysecured to said frame, substantially as and for the purposes set forth.

3. In a grain binder, the combination with the knotter shaft, a drivingshaft, a connecting shaft transverse thereto and gears connecting saiddriving and connecting shafts, of the binder frame formed with a hollowupright inclosing said transverse shaft, and detachable boxes for saiddriving and transverse shafts formed with a housing for said gears,substantially as and for the purposes set forth.

4. In a grain binder, the combination with the knotter shaft, a drivingshaft and a connectin g shaft transverse thereto of the binder frameformed with a hollow upright inclosing said transverse shaft, and boxesfor said driving and connecting shafts formed together with a shank,which is detachably secured in the open end of said hollow upright,substantially as and for the purposes set forth.

5. In a grain hinder, the combination of a bevel driving gear, amutilated driven bevel gear provided with a laterally movable toothedsection pivoted thereto and held in working position by a spring, a camarranged to hold said toothed section out of engagement with the drivinggear, and a trip lever connected with said cam, substantially as and forthe purposes set forth.

6. In a grain binder, the combination with theknotter shaft, of adriving gear, a mutilated driven gear mounted on the knotter shaft andprovided with adisplaceable toothed section and with a cam, anoscillatory trip cam loosely mounted on the knotter shaft, and a triplever pivoted to the trip cam and having a bearing on the periphery ofthe gear cam, substantially as and for the purposes set forth.

7. In a grain binder, the combination with the knotter shaft of adriving gear, a mutilated driven gear provided with a displaceabletoothed section and with a cam, a spring arranged to hold saidtoothed'section in working position, a trip cam loosely mounted on theknotter shaft and arranged by contact with a projection on said toothedsection to hold it out of engagement with the driving gear, stops forlimiting the movement of said trip cam, a trip lever pivoted to saidtrip cam and having an arm provided with a friction roller bearingagainst the periphery of the gear cam, and a compressor arm connectedwith said trip lever, substantially as and for the purposes set forth.

8. In a grain binder, the combination of a driving gear or pinion, amutilated gear provided with a laterally movable toothed section pivotedthereto and held in working position by a spring, a trip cam arranged tomove and hold said toothed section out of contact with the driving gearor pinion, and trip mechanism connected with said cam substantially asand for the purposes set forth.

9. In a grain hinder, the combination of a driving and a driven gear,means for engaging and disengaging the same, an oscillatory trip camcontrolling the engagement of said gears, a compressor arm, a trip leverconnected therewith and pivoted to said cam, a locking dog for engagingthe driven gear, and a spring interposed between said locking dog andtrip cam, substantially as and for the purposes set forth.

10. In a grain binder, the combination of a driving gear, a driven gearprovided with a cam and a laterally movable toothed section pivotedthereto, an oscillatory trip cam for holding said toothed section out ofengagement with said driving gear, a trip lever pivoted to said trip camand provided with an arm bearing upon the periphery of the gear cam, acompressor or trip arm connected with said trip lever, a locking dog forengaging the driven gear, and a spring interposed between said dog andtrip cam, substantially as and for the purposes set forth.

11. In a grain hinder, the combination of a driving gear and a drivengear provided with an inwardly projecting lug, means for engaging anddisengaging said gears, an oscillatory trip cam controlling theengagement of said gears, a compressor arm, a trip lever connectedtherewith and pivoted to said cam, a locking dog pivoted .to .a suitablesupport and arranged to ride over and engage with the lug on the drivengear, and a spring interposed, s between said dog and the trip cam,snbstantially ,as end for the purposesset forth.

driving gear and a driven gear, provided vwith a, lag, means forengagingand disengaging said gears, in tripcam controliing the engtlgQ-vment of said gears, a compressor arm, e -tri. lever eonneeted therewithand pivoted to said- -cam,ga locking :dog pivoted to a suitable 5 1pxand .a stop arranged to, hold said dog out of:

purposes set forth. 13. Inn. g In 7 trip cam .controlling-theengagementflof said gears, :a trip lever pivoted tosai-d cam, 11 loolp 2ing dog working with said driven gear, a" spring interposed between saidlocking dog and trip oam,and a frame prozvidedwith a!" housing inolosingsaid driving gear, cam, dog;

the par-1;;

and spring, substantially as and for poses set forth.

: pur oses. set orth.

.14,- ln .a g in inder, t com inatio with he binder and omp e sor ehef pv ded with new-Pres r armniz a yoke ca ryieg'said sha t adjac nt. to.said eomr V T I ermendharing a y elding cormeet on w 12. In a grainbinder, the combination of a 1 Purpos set iorththe bin e ramesnhsmnt elx.asensi o t- 11 In a greinhinder, the combination with the binder ramvand acomi 'essorshe t Pr vided'with. aeompnessor arm of yoke P sidewith eseriestoi beari gs fo 5 44 3 men having a y elding eonnection withsaid port and arranged to ride over and engage with the log on thedriven gear, a spring interposed between said .dog and the-trip eam,

bi der imme smbstaetiel y and; or t 1,6 In grai 'binder, the c mb nationwi h :t e binder fram and the cqmrress sh contact withsai'd gear, exceptwhen it engages r with said lug, substantially as and for the 1 3 thebinder frame and provided; with aseries binder, theeombination of a :1driving and .a driven gear, means for engage, ing and disengaging thesame, an oscillatory 3 lyield outwardly, ubsta t al y sv and or t p poss set forth.

proyided with e cemnressore m o a lo y ke osely mounted. on the lower gmof of bearings for said hafihende pri g interpose between sa d. yoke anthe binder frame so. as to permitthe compressor arm to JAMES A. GRAHAM.EDWARD J. BIRKETT.

